Through Analysis on roadway roof separation time and law,Adoption malison reinforcing roadway roof separation Exceed the range area,Make the obvious result.
通过对巷道顶板离层时间及规律进,采用马丽散对顶板离层超范围区进加,取得明显效果。
Through Analysis on roadway roof separation time and law,Adoption malison reinforcing roadway roof separation Exceed the range area,Make the obvious result.
通过对巷道顶板离层时间及规律进,采用马丽散对顶板离层超范围区进加,取得明显效果。
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